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Magnetic resonance imaging in the diagnosis and surgical management of sacral osteochondrosis in a mastiff dog
  1. M. Glyde1,
  2. R. Doyle1,
  3. H. McAllister1,
  4. L. Campoy1 and
  5. J. J. Callanan2
  1. 1 Department of Veterinary Surgery, University College Dublin, Belfield, Dublin 4, Ireland
  2. 2 Department of Veterinary Pathology, Faculty of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland


The clinical, radiographic, magnetic resonance imaging (MRI), surgical and pathological findings related to an osteochondral lesion of the sacrum in a mastiff dog are described. The dog showed chronic signs of pain in its pelvic limbs. Radiography revealed a triangular mineralised opacity at the craniodorsal aspect of the sacrum consistent with sacral osteochondrosis. A T2-weighted spin-echo MRI revealed dorsal and lateral compression of the cauda equina. The osteochondral fragment was removed via a dorsal laminectomy, and the clinical signs resolved. Histological abnormalities in the fragment were consistent with a diagnosis of osteochondrosis.

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